Health API returns details and diagnosis in non-verbose mode

[consulthys]

Elasticsearch Version

8.13.2

Installed Plugins

Java Version

bundled

OS Version

ES Cloud

Problem Description

According to the official documentation of the Health API, when hitting the _health_report API endpoint with ?verbose=false, there should be no details or diagnosis included in the response.

However, it's not the case as depicted below:

• shards_capacity has the same output whether verbose is true or false
• ilm returns diagnosis whether verbose is true or false

GET _health_report?verbose=false&filter_path=**.details,**.diagnosis
=>
{
  "indicators": {
    "shards_capacity": {
      "details": {
        "data": {
          "max_shards_in_cluster": 3000
        },
        "frozen": {
          "max_shards_in_cluster": 0
        }
      }
    },
    "ilm": {
      "diagnosis": [
        {
          "id": "elasticsearch:health:ilm:diagnosis:stagnating_action:migrate",
          "cause": "Some indices have been stagnated on the action [migrate] longer than the expected time.",
          "action": "Check the current status of the Index Lifecycle Management for every affected index using the [GET /<affected_index_name>/_ilm/explain] API. Please replace the <affected_index_name> in the API with the actual index name.",
          "help_url": "https://ela.st/ilm-explain",
          "affected_resources": {
            "ilm_policies": [
              "elastic-cloud-logs",
              "metricbeat"
            ],
            "indices": [
              ".ds-elastic-cloud-logs-8-2024.04.17-000005",
              ".ds-elastic-cloud-logs-8-2024.04.26-000011",
              ".ds-metricbeat-8.11.1-2023.12.19-000001",
              ".ds-metricbeat-8.11.1-2024.01.18-000002",
              ".ds-metricbeat-8.12.0-2024.01.18-000001",
              ".ds-metricbeat-8.12.0-2024.02.17-000002",
              ".ds-metricbeat-8.12.2-2024.03.11-000001",
              ".ds-metricbeat-8.13.0-2024.03.26-000001",
              ".ds-metricbeat-8.13.0-2024.04.26-000003",
              ".ds-metricbeat-8.13.2-2024.04.10-000001",
              ".ds-metricbeat-8.13.2-2024.04.26-000003"
            ]
          }
        }
      ]
    }
  }
}

Steps to Reproduce

1. Hit GET _health_report?verbose=false&filter_path=**.details,**.diagnosis
2. The response should be empty

Logs (if relevant)

No response

[elasticsearchmachine]

Pinging @elastic/es-data-management (Team:Data Management)